Blockchain-based data certification and notarization integration

Increase revenue with an extra level of confidence to your business data.


Solution Overview

Gretol's ESAAS is a universal digital data certification and notarization solution to meet legal, compliance and business requirements of proving the authenticity, existence and ownership of any digital contents. For various types of digital data, such as contracts, medical records, transactional data, digital arts, music, photos, diploma, certificates etc., ESAAS computes cryptographic hashes as data 'fingerprints' and anchor the hashes to blockchain with timestamps. Whenever needed, a blockchain proof can be generated to irrefutably prove the exact moment when the data existed, the possession of data by certain owner and prove the data is authentic and unchanged.

Reliable data

Cryptographic data anchor on blockchain

Provides the capability to create cryptographic hash for various types of digital data and anchors the hash to Blockchain with timestamps immutably

Smartphone showing buying crypto on Gretol
  • 700%+

    Potential growth

  • 50+

    Use cases

  • $1.76T

    2030 GDP growth

  • 15+

    Industries supported

Supports your current flow

Ready API

Offers robust API access to connect with the systems you already use, to integrate and share data to your specific needs

Provides the capability to explore the underlying running condition of blockchain network.

At a glance

Service Benefits

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    Forensic auditable

    All proofs, evidences and audit trails generated by Gretol's ESAAS can be verified by independent third parties. All actions to the Blockchain data are recorded in a secure and transparent manner which can be independently audited.

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    Data privacy protection

    While Gretol's ESAAS provides authenticity proofs, your data is not exposed to any risk of public disclosure. Ant ESAAS works only on encrypted or masked data in parsimonious manner and offers strong privacy protection and security to your sensitive data.

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    Wide-range adoption examples

    Gretol's ESAAS has been used in many industries to meet the data certification and notarization requirements. Gretol's ESAAS is proven to be readily adaptable to various needs and easily adoptable by the most industries.

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    Platform as well as Service

    Gretol's ESAAS is designed to meet the needs of enterprises having different levels of technological readiness. Enterprise users can simply use the web interface to anchor their data to Blockchain and generate necessary blockchain proofs.


A blockchain is a distributed, cryptographically-secure database structure that allows network participants to establish a trusted and immutable record of transactional data without the need for intermediaries. A blockchain can execute a variety of functions beyond transaction settlement, such as smart contracts. Smart contracts are digital agreements that are embedded in code and that can have limitless formats and conditions. Blockchains have proven themselves as superior solutions for securely coordinating data, but they are capable of much more, including tokenization, incentive design, attack-resistance, and reducing counterparty risk. The very first blockchain was the Bitcoin blockchain, which itself was a culmination of over a century of advancements in cryptography and database technology.

Historically, databases have incorporated a centralized client-server architecture, in which a sole authority controls the central server. This design means that data security, alteration, and deletion rests with a single point of failure. The decentralized architecture of blockchain databases emerged as a solution for many of the weaknesses of centralized database architecture. A blockchain network consists of a large number of distributed nodes––voluntary participants who must reach consensus and maintain a single transactional record together.

When a digital transaction occurs in a blockchain network, it is grouped together in a cryptographically-secure “block” with other transactions that have occurred in the same time frame. The block is then broadcast to the network. A blockchain network is comprised of nodes or participants who validate and relay transaction information.

Blockchain technology has a wide variety of benefits, for both global enterprises and local communities. The most commonly cited benefits of a blockchain are trusted data coordination, attack-resistance, shared IT infrastructure, tokenization, and built-in incentivization.

Web3 has become a catch-all term for the vision of a new, better internet. At its core, Web3 uses blockchains, cryptocurrencies, and NFTs to give power back to the users in the form of ownership.

Web3 gives you ownership of your digital assets in an unprecedented way. For example, say you're playing a web2 game. If you purchase an in-game item, it is tied directly to your account. If the game creators delete your account, you will lose these items. Or, if you stop playing the game, you lose the value you invested into your in-game items. As well as owning your data in Web3, you can own the platform as a collective, using tokens that act like shares in a company. Current payment infrastructure relies on banks and payment processors, excluding people without bank accounts or those who happen to live within the borders of the wrong country. Web3 uses tokens to send money directly in the browser and requires no trusted third party.

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